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A wave travelling in positive X-directio...

A wave travelling in positive X-direction with `A=0.2m` has a velocity of `360 m//sec` if `lamda=60m`, then correct exression for the wave is

A

`y = 0.2 sin [s pi (6t + (x)/(60))]`

B

`y = 0.2 sin [pi (6t + (x)/(60))]`

C

`y = 0.2 sin [2 pi (6 t - (x)/(60))]`

D

`y = 0.2 sin [pi (6 t - (x)/(60))]`

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